A GROWTH AND CHARACTERIZATION OF PURE AND GLYCINE DOPED KDP CRYSTALS BY GEL METHOD

Optically good quality pure and glycine doped KDP crystals have been grown by microbial free gel growth method at room temperature and their characterization of KDP crystals have been studied. The presence of functional groups of crystals are qualitatively analysed from FTIR spectra. X-ray diffraction study has been carried out in order to see the effect of dopant on the structural parameters of KDP. Thermal properties like decomposition temperature and weight loss have been reported from the TGA and DTA analysis. The transparency of grown crystals has been confirmed using UV-Vis-spectra. The second harmonic generation (SHG) was measured by using Kurtz powder technique. The relative second harmonic generation (SHG) efficiency of glycine doped crystals was higher than the pure KDP crystals. The dielectric behavior of pure and glycine doped crystals has been studied in the frequency range from 100Hz to 100 KHz.